Insalata di Anguria, Pesce Spada, Zucchine e Capperi (Italian Watermelon, Swordfish, Zucchini and Caper Salad)

Italian Watermelon, Swordfish, Zucchini and Caper Salad

Story of the Dish

This summer salad is built around a very Italian contrast: sweet fruit, grilled seafood, bitter green notes, briny capers and sharp citrus. Watermelon appears increasingly often in contemporary Southern Italian kitchens because its cold sweetness works well with saline ingredients, especially swordfish, bottarga, anchovy and capers. The combination is modern, but its logic is Mediterranean.

Swordfish is especially associated with Sicily and Calabria, where it is commonly grilled quickly and dressed with olive oil, lemon, herbs and capers. Here the fish is cooked just until opaque, then paired with raw or lightly grilled zucchini and chilled watermelon so every bite moves between warm, cool, juicy and savory.

Servings & Timing

Servings: 4. Difficulty: Easy to Medium. Preparation Time: 25 minutes. Cooking Time: 8 minutes. Total Time: about 35 minutes.

Recipe Information

Servings: 4

Difficulty: Intermediate

Timing: Follow the preparation and doneness cues in the method below.

Ingredients

1 1/4 lb swordfish steak, skin removed

4 cups seedless watermelon, cut into 1 inch cubes

2 medium zucchini, shaved into ribbons or sliced very thin

2 tbsp salt packed capers, rinsed and dried

3 tbsp extra virgin olive oil, divided

1 tbsp fresh lemon juice

1 tsp finely grated lemon zest

1 tbsp chopped flat leaf parsley

1 tbsp torn fresh mint

1/2 tsp kosher salt, plus more for the fish

Freshly ground black pepper

Optional: 1 tbsp toasted pine nuts

Preparation

Chill the watermelon well before assembling. Drain any excess juice so it does not dilute the dressing.

Pat the swordfish dry and cut into large pieces or leave as a single steak for grilling. Brush lightly with olive oil and season with salt.

Heat a grill or heavy skillet over high heat. Cook the swordfish about 3 to 4 minutes per side, depending on thickness, until just opaque and still moist in the center. Rest 3 minutes, then cut into generous cubes.

For raw zucchini, shave it into thin ribbons and season lightly with salt for 5 minutes, then blot dry. For a smokier version, grill thin lengthwise slices for 30 to 45 seconds per side and cool before cutting.

Whisk 2 tbsp olive oil with lemon juice, zest and black pepper. Combine watermelon, zucchini, capers, parsley and mint in a wide bowl. Fold in the swordfish last so it does not break apart. Dress lightly and taste before adding more salt because the capers are already saline.

Plate immediately. Finish with pine nuts if using and a final drizzle of olive oil.

Professional Technique

Swordfish becomes dry when overcooked. Use high heat to create surface color quickly and remove the fish as soon as the center turns opaque. Rest briefly, but not so long that carryover cooking dries the meat.

The salad should not sit dressed for long. Salt draws water from watermelon and zucchini, so combine at the last moment and serve on cool plates. Keep all cuts relatively large so the dish reads as a composed salad rather than a wet chopped mixture.

Chef Tips

Choose swordfish that smells clean and marine, not strongly fishy. The flesh should be moist and firm.

Rinse salt packed capers thoroughly, then dry them. For extra texture, fry a small portion in olive oil until crisp and scatter them over the plate.

Use a ripe but firm watermelon. Overripe fruit collapses when tossed.

Common Mistakes

Overcooking swordfish is the fastest way to ruin the dish.

Adding too much lemon too early makes the salad watery and can dull the watermelon.

Failing to dry the capers after rinsing can dilute the dressing.

Cutting the zucchini too thick makes it feel raw and heavy beside the tender fish.

Mistakes to Avoid

Avoid overcooking the principal ingredient, rushing the final seasoning, or allowing the sauce or dressing to become heavier than the main component. Follow the specific temperature and texture cues in the preparation, taste again before service, and keep finishing ingredients restrained so the regional identity remains clear.

Wine Pairing

Etna Bianco: citrus, salinity and volcanic freshness mirror the salad.

Vermentino di Sardegna: herbal and saline notes suit swordfish and capers.

Fiano di Avellino: texture and acidity balance the sweet watermelon.

Grillo Sicilia DOC: bright Mediterranean character works naturally with grilled swordfish.

Franciacorta Brut: bubbles and acidity refresh the palate between sweet and savory bites.

Storage and Reheating

This salad is best served immediately. Store leftover components separately when possible. Cooked swordfish may be refrigerated up to 2 days and watermelon up to 2 days. Do not reheat the assembled salad. If serving leftover swordfish, let it lose its refrigerator chill and use it cold or at cool room temperature.

Nutrition per Serving

Approximate nutrition per serving: 330 calories, 34 g protein, 18 g carbohydrates, 14 g fat, 2.5 g saturated fat, 2 g fiber, 12 g sugars, 520 mg sodium, and 70 mg cholesterol.

Chef Gianluca

Chef Gianluca

Regional Context

Swordfish has a particularly strong identity in the Strait of Messina and along the coasts of Sicily and Calabria. Italian preparations often rely on short cooking, olive oil, citrus, herbs and capers, ingredients that keep the fish bright instead of masking it. This salad takes that coastal logic and uses watermelon as the sweet component, a modern pairing that still respects the Mediterranean flavor structure.

The contrast works because watermelon brings water and sugar, while capers and swordfish bring salinity and umami. Zucchini supplies a mild vegetal note that connects the fruit to the fish. Mint and parsley provide aroma without turning the salad into a herb mixture.

Ingredient Notes

A center-cut swordfish steak is easiest to cook evenly. Avoid pieces with a strong odor or dry, brown edges. If your capers are packed in salt, soak and rinse them, then dry thoroughly before use. If they are packed in brine, drain and rinse them briefly.

Choose watermelon that is cold, crisp and sweet but not overripe. For zucchini, small firm specimens have fewer seeds and a better raw texture than very large ones. Extra virgin olive oil should be fruity but not aggressively bitter.

Service and Plating

Build the salad at the last possible moment. Arrange watermelon and zucchini first, then add warm or room-temperature swordfish so the fish does not heat the fruit excessively. Capers and herbs should be distributed rather than concentrated in one area.

Serve in wide chilled bowls or plates. The dish is especially effective as a summer first course or light main course. Good bread on the side is useful because the juices from watermelon, lemon and olive oil form a naturally flavorful dressing at the bottom of the plate.

Balancing Sweetness, Acidity and Salinity

The success of this salad depends on balance. Watermelon can vary dramatically in sweetness, so taste it before deciding how much lemon and caper to use. If the fruit is intensely sweet, a little extra acidity and caper work well. If the fruit is only mildly sweet, reduce the lemon so the salad does not become sharp.

Swordfish provides richness but very little acidity, which is why lemon is important. However, acid should season the dish rather than cook the fish after grilling. Dress at the last moment, and use zest for aroma before increasing juice. Zest adds citrus character without additional liquid.

Capers should act like punctuation. Too many make every bite equally salty and flatten the contrast between fish and fruit. Distribute them across the plate and allow some bites to be sweeter and others more briny. This variation keeps the salad lively.

Temperature also matters. Ice-cold watermelon beside piping-hot fish creates too much contrast. Let the swordfish rest a few minutes after grilling, then combine it while still warm but not steaming. The zucchini can be cool room temperature. The final dish should feel refreshing rather than refrigerator-cold.

For a more restaurant-style presentation, cut the swordfish and watermelon into similarly sized pieces and fold the zucchini ribbons loosely between them. Keep the dressing glossy and minimal. Pools of liquid under the salad usually mean it was salted or dressed too early.

Choosing and Cooking Swordfish Well

The thickness of the swordfish determines the cooking method. A steak about 1 inch thick can be grilled over high heat in a few minutes per side. Thicker pieces benefit from a slightly gentler finish after searing so the outside does not dry before the center is done. The fish should feel firm but still moist when pressed with a finger.

Because swordfish is naturally leaner than oily fish such as salmon, brush it lightly with olive oil before grilling and avoid long marinades. Acidic marinades can tighten the surface and create a dry texture before the fish even reaches the pan.

After cooking, let the swordfish rest briefly and cut it with a sharp knife so the pieces stay clean. Add it to the salad gently rather than stirring aggressively. The objective is to keep distinct pieces of fish, watermelon and zucchini visible on the plate, with the dressing acting as a light connection between them.